/*
 * Copyright (c) 2011-2020, baomidou (jobob@qq.com).
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * <p>
 * https://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.godtree.mybatisplus.method;

import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.core.enums.SqlMethod;
import com.baomidou.mybatisplus.core.injector.AbstractMethod;
import com.baomidou.mybatisplus.core.metadata.TableInfo;
import com.baomidou.mybatisplus.core.metadata.TableInfoHelper;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.core.toolkit.sql.SqlScriptUtils;
import com.godtree.mybatisplus.enums.MySqlMethod;
import org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator;
import org.apache.ibatis.executor.keygen.KeyGenerator;
import org.apache.ibatis.executor.keygen.NoKeyGenerator;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.mapping.SqlSource;

/**
 * 插入一条数据（数据存在忽略插入）（选择字段插入）
 *
 * @author lisicheng
 * @since 2023-05-05
 */
public class InsertIgnore extends AbstractMethod {

  @Override
  public MappedStatement injectMappedStatement(Class<?> mapperClass, Class<?> modelClass,
      TableInfo tableInfo) {
    KeyGenerator keyGenerator = new NoKeyGenerator();
    MySqlMethod sqlMethod = MySqlMethod.INSERT_IGNORE;
    String columnScript =
        SqlScriptUtils.convertTrim(tableInfo.getAllInsertSqlColumnMaybeIf(null), LEFT_BRACKET,
            RIGHT_BRACKET, null,
            COMMA);
    String valuesScript =
        SqlScriptUtils.convertTrim(tableInfo.getAllInsertSqlPropertyMaybeIf(null), LEFT_BRACKET,
            RIGHT_BRACKET,
            null, COMMA);
    String keyProperty = null;
    String keyColumn = null;
    // 表包含主键处理逻辑,如果不包含主键当普通字段处理
    if (StringUtils.isNotBlank(tableInfo.getKeyProperty())) {
      if (tableInfo.getIdType() == IdType.AUTO) {
        /* 自增主键 */
        keyGenerator = new Jdbc3KeyGenerator();
        keyProperty = tableInfo.getKeyProperty();
        keyColumn = tableInfo.getKeyColumn();
      } else {
        if (null != tableInfo.getKeySequence()) {
          keyGenerator = TableInfoHelper.genKeyGenerator(sqlMethod.getMethod(), tableInfo,
              builderAssistant);
          keyProperty = tableInfo.getKeyProperty();
          keyColumn = tableInfo.getKeyColumn();
        }
      }
    }
    String sql = String.format(sqlMethod.getSql(), tableInfo.getTableName(), columnScript,
        valuesScript);
    SqlSource sqlSource = languageDriver.createSqlSource(configuration, sql, modelClass);
    return this.addInsertMappedStatement(mapperClass, modelClass, sqlMethod.getMethod(), sqlSource,
        keyGenerator,
        keyProperty, keyColumn);
  }

  @Override
  public String getMethod(SqlMethod sqlMethod) {
    // 自定义 mapper 方法名
    return "insertIgnore";
  }
}
